如何使用 "smokeless" 造句
- 1. There are chemical fuels that are clean and smokeless .
- 有些化学燃料是清洁无烟的。
- 2. Use of smokeless tobacco also raises the risk .
- 即使吸食低焦油的烟草也同样会提高患病风险。
- 3. The spanish soldiers used smokeless gunpowder .
- 西班牙军队用的是无烟火药。
- 4. Tourism is a smokeless industry .
- 旅游业是一种无烟产业。
- 5. The nitramine ethers perform two functions in the smokeless powder composition .
- 硝胺醚在无烟火药成份中有两种作用。